SHARMA,O.P. (1993). PLANT TAXONOMY. TATA MCGRAW-HILL PUBLISHING COMPANY.
Chicago Style aipamenaSHARMA,O.P. PLANT TAXONOMY. NEW DELHI: TATA MCGRAW-HILL PUBLISHING COMPANY, 1993.
MLA aipamenaSHARMA,O.P. PLANT TAXONOMY. TATA MCGRAW-HILL PUBLISHING COMPANY, 1993.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.